!Master Auron:

Good! Once you've passed through the southern gate of the village, to the left you'll see the windmills of Windmill Hill. There you'll find giant poison spiders and arachnid trackers.

You'll also find many spiders on the Fellmere Harvesting Grounds  west of the Fellmere Lake over the northern mountains. Bring twenty of their legs to me.

You must use only the sword of trial to kill them! Do you understand? Get going!